Why do douchbags always spit in the urinal when they're taking a piss?

Whenever I'm bleeding the line at my local 24-Hr Fitness, some buffed-up douchebag will stroll up to the urinal beside, yank down his long shorts, and soon as he starts wizzing, drop a lougie in the urinal. The weird thing is that they are all total douchebags and they all do it the same way. Is there some Wikipedia for douchebags where they learn this stuff?